Salicylic Acid Improves Rice Seed Germination under Induced Drought Stress
Salicylic Acid Improves Rice Seed Germination under Induced Drought Stress
Ch. Muhammad Rafiq1, Qasim Raza1*, Awais Riaz1, Misbah Hanif2, Wajiha Saeed2, Shawaiz Iqbal1, Tahir Hussain Awan1, Syed Sultan Ali1 and Muhammad Sabar1
Figure 1:
Total germination under drought and salicylic acid treatments.
Coloured bars indicate total germination percentage in rice seeds at 25 ± 3 ºC after five days of respective treatment application. Bars with different alphabets at their top are statistically significant (p < 0.05) from each other. Data are means (+ standard error) of three replicates.
Figure 2:
Effects of drought and salicylic acid treatments on total seed germination.
Rice seeds were primed with respective SA concentrations and kept overnight at 35 ºC. Then hydrated seeds were allowed to germinate at 25 ± 3 ºC in darkness under different osmotic stress levels. The picture was taken at the end of experiment after five days of sowing.
Figure 3:
Daily germination under drought and salicylic acid treatments.
Daily germination percentage of rice seeds in different concentrations of SA (A), drought (B) and their interactive treatments (C–F) at 25 ± 3 ºC in darkness. Data are means (% ± S.E) of three replicates.
Figure 4:
Effect of SA concentrations on mean germination time and germination index at different osmotic stress levels.
Mean germination time (A) and germination index (B) of rice seeds after five days of drought, SA and their interactive treatments. Data are means (% ± S.E) of three replicates.
Figure 5:
Effect of drought and salicylic acid treatments on seed vigour index.
Coloured bars indicate seed vigour index value of rice seeds at respective treatments. Bars with different alphabets on their top are statistically significant (p < 0.05) from each other. Data are means (+ S.E) of three replicates.
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June 2021
Vol. 7, Iss. 1, Pages 1-205
